/*
 *  (C) Copyright 2008 Insula T.I. Ltda.
 *
 *  This file is part of Vulcano.
 *
 *  Vulcano is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Vulcano is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with Vulcano.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.openinsula.vulcano.core.command.processor;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.openinsula.vulcano.core.BeanConfigurerSupportUtils;
import org.openinsula.vulcano.core.command.Command;
import org.openinsula.vulcano.core.command.invoker.CommandInvoker;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.wiring.BeanConfigurerSupport;
import org.springframework.beans.factory.wiring.ClassNameBeanWiringInfoResolver;

/**
 * {@link CommandProcessor} implementation that uses Spring's
 * {@link BeanConfigurerSupport} to inject dependencies on the {@link Command}
 * being executed.
 * 
 * @author yanaga
 * @author rebola
 * @since 1.1
 * @see Command
 * @see CommandInvoker
 * @see BeanConfigurerSupport
 * @see ClassNameBeanWiringInfoResolver
 */
public class DependencyInjectionCommandProcessor implements CommandProcessor, BeanFactoryAware {

	protected final Log logger = LogFactory.getLog(getClass());

	protected BeanFactory beanFactory;

	@Override
	public <T> T doExecute(final Command<T> command, final CommandChain commandChain) {
		BeanConfigurerSupportUtils.configureBean(beanFactory, command);

		return commandChain.doChain(command);
	}

	@Override
	public void setBeanFactory(final BeanFactory beanFactory) throws BeansException {
		this.beanFactory = beanFactory;
	}

}
